                           :pca-iters 10
                           :base-iters 10
                           :base-k 50
-                          :group-iters 10
-                          :group-k 3}
+                          :group-iters 10}
                     opts))
    :rating-mat  (plmb/fnk [conv votes]
                   (update-nmat (:rating-mat conv)



(def large-conv-update-graph
  (merge med-conv-update-graph2
    {:pca (plmb/fnk [conv mat opts']
            (let [n-ptpts (matrix/dimension-count mat 0)
                  sample-size (sample-size n-ptpts)]

                          :pca-iters 10
                          :base-iters 10
                          :base-k 50
                          :group-iters 10}
                    opts))
   :rating-mat  (plmb/fnk [conv votes]
                  (update-nmat (:rating-mat conv)
